649321004 has 24 divisors (see below), whose sum is σ = 1189557600. Its totient is φ = 309538944.

The previous prime is 649320871. The next prime is 649321033. The reversal of 649321004 is 400123946.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17522 + ... + 40070.

It is an arithmetic number, because the mean of its divisors is an integer number (49564900).

Almost surely, 2^649321004 is an apocalyptic number.

It is an amenable number.

649321004 is a deficient number, since it is larger than the sum of its proper divisors (540236596).

649321004 is a wasteful number, since it uses less digits than its factorization.

649321004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22889 (or 22887 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 649321004 is about 25481.7778814587. Note that the first 3 decimals coincide. The cubic root of 649321004 is about 865.9373731306.

The spelling of 649321004 in words is "six hundred forty-nine million, three hundred twenty-one thousand, four".